GMC Truck Instrument Panel Bulb Size
The GMC Truck instrument panel utilizes bulb sizes 57 and 1896 for illumination across various historical configurations. Data for the specified components covers the period from 1950 to 1957.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 1956-1957 | 57 |
| 1950-1955 | 1896 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W. | 1896 |